protected void CheckPreviousBackup()
{
string backupFilePath = GetSystemSettingsBackupPath();
if (File.Exists(backupFilePath))
{
// backup file exists
DateTime date = File.GetLastWriteTime(backupFilePath);
string message = string.Format(Resources.CommandBase_Message_SystemSettingsAreNotRestored, date);
bool? answer = Prompt(message, threeState: true);
// process depending on answer
// true (Yes): restore the backup
// false (No): do not restore the backup, but delete it
// null (Cancel): do nothing
if (answer.HasValue)
{
if (answer.Value)
{
// restore the backup
JsonObjectData data = JsonObjectData.Load(backupFilePath, createIfNotExist: false);
if (data != null)
{
SystemSettingsSwitcher switcher = this.ComponentFactory.CreateSystemSettingsSwitcher(this, null);
switcher.Restore(data, systemSessionEnding: false);
}
}
// delete backup file
File.Delete(backupFilePath);
}
}
return;
}
protected JsonObjectData LoadSettingsFromFile(bool createIfNotExist, string settingsFilePath = null)
{
// argument checks
if (settingsFilePath == null)
{
settingsFilePath = EnsureSettingsFilePathSet();
}
// load settings from the file
return(JsonObjectData.Load(settingsFilePath, createIfNotExist));
}